diff options
Diffstat (limited to 'recipes/linux/linux-wrt-2.4.20/diag.c')
| -rw-r--r-- | recipes/linux/linux-wrt-2.4.20/diag.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/recipes/linux/linux-wrt-2.4.20/diag.c b/recipes/linux/linux-wrt-2.4.20/diag.c new file mode 100644 index 0000000000..d39ac7c698 --- /dev/null +++ b/recipes/linux/linux-wrt-2.4.20/diag.c @@ -0,0 +1,203 @@ +// replacement diag module +// (c) 2004 openwrt +// mbm at alt dot org +// +// initial release 2004/03/28 +// +// 2004/08/26 asus & buffalo support added + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sysctl.h> +#include <asm/io.h> +#include <typedefs.h> +#include <bcm4710.h> +#include <sbutils.h> + +extern char * nvram_get(const char *name); +static void *sbh; + +// v2.x - - - - - +#define DIAG_GPIO (1<<1) +#define DMZ_GPIO (1<<7) + +static void set_gpio(uint32 mask, uint32 value) { + sb_gpiocontrol(sbh,mask,0); + sb_gpioouten(sbh,mask,mask); + sb_gpioout(sbh,mask,value); +} + +static void v2_set_diag(u8 state) { + set_gpio(DIAG_GPIO,state); +} +static void v2_set_dmz(u8 state) { + set_gpio(DMZ_GPIO,state); +} + +// v1.x - - - - - +#define LED_DIAG 0x13 +#define LED_DMZ 0x12 + +static void v1_set_diag(u8 state) { + if (!state) { + *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG)=0xFF; + } else { + *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DIAG); + } +} +static void v1_set_dmz(u8 state) { + if (!state) { + *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ)=0xFF; + } else { + *(volatile u8*)(KSEG1ADDR(BCM4710_EUART)+LED_DMZ); + } +} + +// - - - - - +static void ignore(u8 ignored) {}; + +// - - - - - +#define BIT_DMZ 0x01 +#define BIT_DIAG 0x04 + +void (*set_diag)(u8 state); +void (*set_dmz)(u8 state); + +static unsigned int diag = 0; + +static void diag_change() +{ + printk(KERN_INFO "led -> %02x\n",diag); + + set_diag(0xFF); // off + set_dmz(0xFF); // off + + if(diag & BIT_DIAG) + set_diag(0x00); // on + if(diag & BIT_DMZ) + set_dmz(0x00); // on +} + +static int proc_diag(ctl_table *table, int write, struct file *filp, + void *buffer, size_t *lenp) +{ + int r; + r = proc_dointvec(table, write, filp, buffer, lenp); + if (write && !r) { + diag_change(); + } + return r; +} + +// - - - - - +static unsigned char reset_gpio = 0; +static unsigned char reset_polarity = 0; +static unsigned int reset = 0; + +static int proc_reset(ctl_table *table, int write, struct file *filp, + void *buffer, size_t *lenp) +{ + + if (reset_gpio) { + sb_gpiocontrol(sbh,reset_gpio,reset_gpio); + sb_gpioouten(sbh,reset_gpio,0); + reset=!(sb_gpioin(sbh)&reset_gpio); + + if (reset_polarity) reset=!reset; + } else { + reset=0; + } + + return proc_dointvec(table, write, filp, buffer, lenp); +} + +// - - - - - +static struct ctl_table_header *diag_sysctl_header; + +static ctl_table sys_diag[] = { + { + ctl_name: 2000, + procname: "diag", + data: &diag, + maxlen: sizeof(diag), + mode: 0644, + proc_handler: proc_diag + }, + { + ctl_name: 2001, + procname: "reset", + data: &reset, + maxlen: sizeof(reset), + mode: 0444, + proc_handler: proc_reset + }, + { 0 } +}; + +static int __init diag_init() +{ + char *buf; + u32 board_type; + sbh = sb_kattach(); + sb_gpiosetcore(sbh); + + board_type = sb_boardtype(sbh); + printk(KERN_INFO "diag boardtype: %08x\n",board_type); + + set_diag=ignore; + set_dmz=ignore; + + if (board_type & 0x400) { + board_type=1; + buf=nvram_get("boardtype")?:""; + if (!strcmp(buf,"bcm94710dev")) { + buf=nvram_get("boardnum")?:""; + if (!strcmp(buf,"42")) { + // wrt54g v1.x + set_diag=v1_set_diag; + set_dmz=v1_set_dmz; + reset_gpio=(1<<6); + reset_polarity=0; + } else if (!strcmp(buf,"asusX")) { + //asus wl-500g + //no leds + reset_gpio=(1<<6); + reset_polarity=1; + } + } else if (!strcmp(buf,"bcm94710ap")) { + buf=nvram_get("boardnum")?:""; + if (!strcmp(buf,"42")) { + // buffalo + set_dmz=v2_set_dmz; + reset_gpio=(1<<4); + reset_polarity=1; + } else if (!strcmp(buf,"44")) { + //dell truemobile + set_dmz=v2_set_dmz; + reset_gpio=(1<<0); + reset_polarity=0; + } + } + } else { + board_type=2; + set_diag=v2_set_diag; + set_dmz=v2_set_dmz; + reset_gpio=(1<<6); + reset_polarity=0; + } + printk(KERN_INFO "using v%d hardware\n",board_type); + + diag_sysctl_header = register_sysctl_table(sys_diag, 0); + diag_change(); + + return 0; +} + +static void __exit diag_exit() +{ + unregister_sysctl_table(diag_sysctl_header); +} + +module_init(diag_init); +module_exit(diag_exit); |